Re: [Qemu-devel] [RFC qom-cpu v2 03/28] target-arm: Update ARMCPU to QOM realizefn

[Peter Maydell]

On 8 February 2013 17:31, Andreas Färber <address@hidden> wrote:
> Am 07.02.2013 19:56, schrieb Peter Maydell:
>> An idle thought: I wonder if we could rearrange things so that
>> the target-specific TCG init is called via tcg_init(), to
>> parallel the way that target-specific KVM init is called
>> via kvm_init()?

> I think that would be counter-productive. KVM is a host technology, it
> depends on whether you're running the right target arch and whether it's
> available/usable on your host. Since you're running on a single host,
> there's only one KVM init to call.
>
> The reason we made it conditional to tcg_enabled() is QTest, which
> doesn't need it. Nor will KVM on ARM.
>
> For TCG I'm hoping to enable multiple targets coexisting at some point,
> so consolidating things into *CPUClass and instance_init seems better.
> There's no ugly #ifdef'ery involved for TCG.

That would suggest that some of the KVM init should also go
via the CPU object; consider a system with one KVM-accelerated
core and one TCG core of a different architecture.

Anyway, it was just an idle thought, as I said.

-- PMM